| BSP Pharmaceuticals S.p.A. | |
| BTicino S.p.A. | Varese |
| Bucap | Rome |
| Buddyfit S.r.l. | |
| Burn4Free | |
| Burstnet S.r.l. | Bologna |
| Buzzoole | Naples |
| ByteWeen S.r.l.s. | Ancona |
| C&D Elettronica S.r.l. | Bergamo |
| C.A.R. Centro Applicazioni Robots S.r.l. | Milan |
| C.D.S. Sistemi | Turin |
| C.M.R. S.r.l. | Modena |
| C.S.M. S.r.l. | Pesaro and Urbino |
| C.U. S.r.l. | Milan |
| CA Auto Bank | |
| CA Auto Bank S.p.A. | |
| Cabiotec S.r.l. | Milan |
| CAD IT S.p.A. | Verona |
| Cad Service Automation S.r.l. | Modena |
| Cad Studio GmbH | South Tyrol |
| Cadmanger | Florence |
| Cadmo S.r.l. | Bologna |
| CAEmate | |
| CAEN S.p.A. | Lucca |
| CAI Electric S.r.l. | Milan |
| Cai S.n.c. | Verona |
| Calearo Antenne S.p.A. | Vicenza |
| Callwave | Turin |
| Calzavara S.p.A. | Rome |
| Camozzi Automation S.p.A. | |
| Campgest S.r.l. | Forlì-Cesena |
| Campus Coworking Milano | Milan |
| Canax S.r.l. | Milan |
| Canova SGR S.p.A. | |
| Cantieri Digitali | Florence |
| Cantieri Informatici S.r.l. | Rome |
| Captive Systems | Bergamo |
| Cardin Elettronica S.p.A. | Treviso |
| Careb S.r.l. | Bari |
| CareGlance S.r.l. | |
| Cargoful S.r.l. | |
| Cariplo Factory S.r.l. | |
| Carlo Bazan Studio Multimediale S.a.s. | Treviso |
| Carlo Gavazzi Automation S.p.A. | Milan |
| Caronni S.r.l. | Milan |
| Carpinet S.a.s. | Modena |
| Cartabianca Publishing S.n.c. | Bologna |
| Cartesien.net | Bologna |
| CartSoftware Soc. Coop. | Pesaro and Urbino |
| Cartucce | Modena |